Loose-leaf holder



1. E. STINGER. LOOSE LEAF HOLDER. APPLICATION FILED SEPT- 30, 1919.

1,370,852. Patnted Mar. 8,1921.

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UNITED STATES PATENT OFFICE.

JOSEPH E. STINGER, OF ST. LOUIS, MISSOURI, ASSIGNOR 'I'O DAWSON MANUFACTURING COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

LOOSE-LEAF HOLDER.

Specification of Letters Patent.

Patented Mar. 8, 1921.

Application filed September 30, 1919. Serial No. 327,535.

I '0 all whom it may concern:

Be it known that I, JOSEPH E. STINGER, a citizen of the United States, and resident of the city of St. Louis and State of Missouri, have invented certain new and useful Improvements in Loose-Leaf Holders, of which the following is a specification and which are illustrated in the accompanying drawings, forming a part thereof.

This invention relates to loose leaf holders and has for an object the provision of a device of this nature that will automatically remain in an open position while leaves are being inserted and which will firmly clamp loose leaves when closed, and still give free access to the same.

An illustrative embodiment of the invention is shown in the accompanying drawings in which- Figure 1 is a plan View of a device embodying the invention;

Fig. 2 is a section on line 22 of Fig. 1;

Fig. 3 is a section corresponding to Fig. 2, showing the device open;

Fig. 1 is a detail section on broken line el-4 of Fig. 2, and

Fig. 5 is an end view from the right of Fi 3.

The holder, as shown, is preferably formed of metal such as aluminum and comprises a back cover, as 10, and a front cover comprising two portions, as 11 and 12, shown as hinged together at 13.

To provide for a thickness of loose leaves as 14, and for other purposes to be described, one end of the back cover 10, and one end of portion 12 of the front cover are turned into flanges at right angles, as at 15 and 16. to the cover portions.

To hold the parts in assembled relation and to control the action of the cover parts 10 and 12 each is provided with a groove, as at 17 and 18, to receive the respective edges of a substantially semi-cylindrical spring, as 19. The groove 18 is shown as farther from the angle of the cover part 12, than is the groove 17 from its adjacent angle.

When the holder is closed, as in Fig. 2, pressure of the spring 19 will cause the hinge end of cover part 12 to press firmly upon cover. 10 or upon interposed slips, as 14. hen part 12 is forced open the extreme edge-20 of flange 16, will be caused to impinge upon flange 15 when portion of 12 adjacent the angle will slide upon the edge 21, of flange 15 until stopped by studs, as 22, shown as struck out from the material of the cover part 12. In this position the spring 19 will, as shown in Fig. 3, press the cover to the open position, the struck out studs 22 resting on the edge of flange 15, and the edge of flange 16 resting against the side of flange 15 near its angle.

To conceal the ends of flanges 15 and 16 pressed metal caps as, 23, 24, may he slipped over the ends of spring 19, and may be retained in place by instruck portion as 25, taking into perforations as 26 in the spring. When these caps are supplied the covers must be recessed as at 27, 28, for their reception and flange 15 must be cut away, as at 29, since in the open position the flange 15 passes to the front of the plane of the spring edges as shown in Fig. 3.

The friction between the leaves 14 will be greater than the friction between the back leaf, and cover 10. If the cover be found not to prevent the leaves from movement due to the polish of the metal, the surface of the back cover 10 may be roughened slightly, as at 31, at the point where pressure of cover part 12 will be applied. To allow of con venient opening of cover 11, a thumb recess, as 32, may be provided in cover 10. To prevent the entire outer surface coming into contact with the surface upon which the holder is laid, beads, as 33, may be struck up from each cover at its free corners.

I claim as my invention:

1. In a loose leaf holder, in combination, a cover having a flange at one end, a cover comprising a short and a long portion hinged together said short portion having a flange at its free edge, said covers arranged with their flanges in overlapped relation, one cover resting adjacent its angle upon the flange of the other cover, stop members projecting from the so supported cover, means pressing said covers toward. each other, whereby when the supported cover is swung about the edge of the flange coaction of the flanges will cause the supported cover said movement in each direction and means to move over the edge of the supporting pressing on said movable cover between the 10 flange until arrested by the stop member. stop means said pressing means pressing 2. In a loose leaf holder, in' combination, said covers together when located one side a cover having a flange at one end, a second of the flange, and holding them apart whet cover having a portion resting on said flange moved to the other side of the flange. and adapted to have a movement laterally of and upon said flange, stop means to limit JOSEPH E. STINGER 

